Where and what is the root canal in a tooth?
To understand this, we need to look at the anatomy of the tooth. The white outside portion of a tooth is called the enamel. Inside the enamel is another hard layer, the dentin. There’s a small chamber at the center of the dentin called the pulp chamber. Inside the pulp chamber is the tooth pulp, a soft tissue made up of nerves, arteries, and veins. The pulp extends from the pulp chamber all the way to the end of the root, through a narrow space called the root canal. This looks like a thin, hollow tube down the centre of a root. In general, teeth in the front of the mouth have only one or two root canals, while teeth in the back have two, three or four root canals.